code: def _gen_chunk_params_default(
      cls, op: "DataFrameDuplicated", input_chunk
  ):
      return {
          "shape": cls._get_shape(input_chunk.shape, op),
          "index_value": input_chunk.index_value,
          "dtype": np.dtype(bool),
          "name": input_chunk.name if input_chunk.ndim == 1 else None,
          "index": (input_chunk.index[0],),
      }
  
imports: import numpy
  from ...None import opcodes
  from ...core import OutputType
  from ...core.operand import OperandStage
  from ..utils import gen_unknown_index_value, hash_dataframe_on
  from ._duplicate import DuplicateOperand, validate_subset
label_desc: Use image node_id 6 for calling the DataFrameDuplicated obj's underlying member method code with example usage: obj._gen_chunk_params_default(cls, op, input_chunk) and returns: dict